JPH08904U - Thigh member of hip joint artificial bone - Google Patents

Thigh member of hip joint artificial bone

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Publication number
JPH08904U
JPH08904U JP008735U JP873595U JPH08904U JP H08904 U JPH08904 U JP H08904U JP 008735 U JP008735 U JP 008735U JP 873595 U JP873595 U JP 873595U JP H08904 U JPH08904 U JP H08904U
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Japan
Prior art keywords
shaft
openings
opening
hip joint
width
Prior art date
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Granted
Application number
JP008735U
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Japanese (ja)
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JP2575632Y2 (en
Inventor
フィルモス・フェクセイ
ハンス・エリッヒ・ハルダー
カルル・オーバーシュタイナー
Original Assignee
ハウメディカ・ゲーエムベーハー
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2/367—Proximal or metaphyseal parts of shafts
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2002/30001—Additional features of subject-matter classified in A61F2/28, A61F2/30 and subgroups thereof
    • A61F2002/30108—Shapes
    • A61F2002/3011—Cross-sections or two-dimensional shapes
    • A61F2002/30112—Rounded shapes, e.g. with rounded corners
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30772—Apertures or holes, e.g. of circular cross section
    • A61F2002/30784—Plurality of holes
    • A61F2002/30785—Plurality of holes parallel
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • A61F2/30771—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves
    • A61F2002/30878—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth applied in original prostheses, e.g. holes or grooves with non-sharp protrusions, for instance contacting the bone for anchoring, e.g. keels, pegs, pins, posts, shanks, stems, struts
    • A61F2002/30884—Fins or wings, e.g. longitudinal wings for preventing rotation within the bone cavity
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2002/3678—Geometrical features
    • A61F2002/368—Geometrical features with lateral apertures, bores, holes or openings, e.g. for reducing the mass, for receiving fixation screws or for communicating with the inside of a hollow shaft
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02—Prostheses implantable into the body
    • A61F2/30—Joints
    • A61F2/32—Joints for the hip
    • A61F2/36—Femoral heads ; Femoral endoprostheses
    • A61F2/3662—Femoral shafts
    • A61F2002/3678—Geometrical features
    • A61F2002/3694—Geometrical features with longitudinal bores
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2230/00—Geometry of prostheses classified in groups A61F2/00 - A61F2/26 or A61F2/82 or A61F9/00 or A61F11/00 or subgroups thereof
    • A61F2230/0002—Two-dimensional shapes, e.g. cross-sections
    • A61F2230/0004—Rounded shapes, e.g. with rounded corners

Abstract

A femoral member of a hip joint endoprosthesis, comprising a shaft (12) having a medial and lateral side which both are arcuately rounded in cross-section and having a proximal portion (24) which is provided with openings (30) connecting the dorsal side (28) with the ventral side (26), wherein the diameter of the openings normal with respect to the shaft axis decreases from proximal to distal, whereby the distal shaft portion (20) is formed approximately straight, that at least the openings adjacent the proximal shaft end are formed as approximately parallel elongated holes, which longer axis extends under an angle to the axis of the distal shaft portion approximately vertical with respect to the medial side proximally slightly curved. <IMAGE>

Description

【考案の詳細な説明】[Detailed description of the device]

【０００１】[0001]

【考案の属する技術分野】[Technical field to which the device belongs]

本考案は、断面弧状の内側及び外側を有し、かつ脊椎側（２８）を前面側（２ ６）に連結している開口（３０）を設けた上部を有しているシャフト（１２）か ら成り、該シャフト（１２）の軸線（１８）に関して垂直な前記開口（３０）の 寸法が上方の開口から下方の開口にかけて減少している、股関節人工骨の大腿部 材（１０）に関する。 The present invention provides a shaft (12) having an inner side and an outer side with an arcuate cross section and having an upper portion provided with an opening (30) connecting the spine side (28) to the front side (26). A femoral material (10) for a hip prosthesis, the dimension of the opening (30) perpendicular to the axis (18) of the shaft (12) decreasing from the upper opening to the lower opening.

【０００２】[0002]

【従来の技術】[Prior art]

従来の股関節人工骨の多くは、骨接着剤を用いるか又は用いないで大腿部導管 に接続され、かつ直線状か又は湾曲した固いシャフトを有している。骨接着剤を 使用して埋め込まれた大腿部材は、例えばそれが緩んで来たときに外科的に取り 外すことが困難である。骨接着剤を使わずに埋め込まれたシャフトは、骨との間 で摩擦を起こし、時として骨管に実質的緊張を与えることになる。ＥＰ−Ａ−０ ３０９６６２及びＥＰ−Ａ−０２４３５８５には、箱状の輪郭を有しその中に、 脊椎や前面開口を介して外部から接触できる空洞を有している人工骨シャフトが 開示されている。その空洞には内因性の海綿物質を充填することが出来、それに よつて長時間に亙って安全な接合が維持されるような本来の骨質接合により大腿 部人工骨の取り扱いが容易となる。箱状シヤフトの輪郭は、材料が変形性に富む ため人工骨シヤフトと骨との間の境界領域において互いに接近するので、疑いも なく弾力性に富む。 Many conventional hip prostheses have a rigid straight or curved shaft that is connected to the femoral conduit with or without bone glue. A femoral component implanted using bone glue is difficult to surgically remove, for example when it comes loose. Implanted shafts without the use of bone glue will rub against the bone and, in some cases, exert substantial strain on the bone canal. EP-A-0 309 662 and EP-A-0243585 disclose artificial bone shafts having a box-shaped contour with a cavity accessible externally through the spine or anterior aperture. There is. The cavity can be filled with an endogenous cancellous material, which facilitates handling of the femoral prosthesis with an inherent osteogenic joint that maintains a safe joint over a long period of time. The contours of the box-shaped shafts are undoubtedly elastic, as the deformable material brings them closer together in the boundary region between the artificial bone shaft and the bone.

【０００３】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

一方、人工骨シヤフトの安定性を害するよな局部的な強い緊張が生じるという 危険がある。しかしながら、このことは、ＥＰ−Ａ−０３０９６６２に開示され ているようにシヤフトをモールディングすることによつて、逆に作用され得る。 ＵＳ−Ａ−３４６６６７０は、腹部から脊椎にかけて延びる中央シヤフト部内に 円形開口を有し、かつ湾曲し比較的細い股関節人工骨を開示しており、その開口 の直径は末端に向かつて小さくなつている。その開口はシヤフトの重量を減らす 目的のものである。 On the other hand, there is a risk of causing strong local tension that impairs the stability of the artificial bone shaft. However, this can be counteracted by molding the shaft as disclosed in EP-A-0309662. US-A-3466670 discloses a curved and relatively thin hip prosthesis with a circular opening in the central shaft extending from the abdomen to the spine, the diameter of the opening decreasing towards the distal end. . The openings are intended to reduce the weight of the shaft.

【０００４】 本考案の目的は、人工骨の十分な安定が得られかつ簡単な手術で済む、大腿部 材と骨とを最良に接合するための、接着剤なしで埋め込まれる股関節人工骨を提 供することである。The object of the present invention is to provide a hip joint artificial bone which is embedded without an adhesive for the best joint between the thigh material and the bone, which can obtain sufficient stability of the artificial bone and can be easily operated. It is to offer.

【０００５】[0005]

【課題を解決するための手段】[Means for Solving the Problems]

本考案による大腿部材は、実施例によればほぼ直線状でかつほぼ円形状又は楕 円形状の末端部を有する。そのシヤフトの中央部はほぼ平行に延びた複数穴を有 し、その複数穴の内のより長い穴の軸は、シヤフト末端部の軸線に対して角度を もつて延びており僅かに湾曲したシヤフト中央部に対してほぼ垂直である。本考 案の別実施例によればこの種の開口が４個から６個設けられ得るが、５個が好適 である。長穴の長軸は、シヤフト軸を横切る線に対して５５°から６５°傾斜し 得るが、ほぼ６０°が好適である。その長穴は比較的長く、それと接近して設け られたシヤフト中央部の少なくとも３個の穴の長さは、その穴の幅と等しいか又 はその幅の倍よりも長い。また、本考案の別実施例によれば、その開口間の幅は 比較的小さく、その開口の幅よりも小さい。一番長い開口の長さは、複数穴が設 けられている領域の幅の少なくとも半分はある。 The thigh member according to the present invention has, according to an embodiment, a substantially straight and substantially circular or elliptical end portion. The central portion of the shaft has holes that extend substantially parallel to each other, and the axis of the longer hole of the holes extends at an angle to the axis of the shaft end and is slightly curved. It is almost perpendicular to the central part. According to another embodiment of the present idea, four to six such openings can be provided, but five is preferred. The long axis of the slot may be inclined at 55 ° to 65 ° with respect to the line transverse to the shaft, with about 60 ° being preferred. The slot is relatively long and the length of at least three holes in the center of the shaft, which are provided close to it, is equal to or longer than the width of the slot. Also, according to another embodiment of the present invention, the width between the openings is relatively small and smaller than the width of the openings. The length of the longest opening is at least half the width of the area where the holes are made.

【０００６】[0006]

【作用】[Action]

以上述べた複数開口の配列及び傾斜関係によって、大腿部材の中央シヤフト部 に掛かる圧力が最適に分散され得る。更に、スポンジ質材料を充填するべき比較 的長い空洞が設けられているので、形而上安定性が得られる。 Due to the arrangement and inclination relationship of the multiple openings described above, the pressure applied to the central shaft portion of the thigh member can be optimally dispersed. Furthermore, because of the relatively long cavity to be filled with the spongy material, metaphysical stability is obtained.

【０００７】 本考案の実施例によれば、シヤフトはほぼ直線状に延びた側面を有しており、 その中央部で僅かに湾曲している。比較的細いそのようなシヤフトは、扱い易く かつ種々の応用に適用できる標準的シヤフトである。そのシヤフトは、ドリルを 使つて広げられた大腿骨の壁面と側面及び中央部で接触する。そのシヤフトの末 端部は、脊髄管を抜き取るための中央穴を有している。更に、本考案の実施例に よれば、その中央穴は、シヤフト全体を貫通していても良く、またシヤフトの中 央部までで止まつていても良い。また、突起は人工骨を十分に動かすときの衝撃 面として使用される。その中央穴を利用して、挿入手段としてのランスを使用す ることが出来る。ランスは、人工骨シャフトが十分に動かされる前に骨内に固定 され、従ってシャフトが動かされるときの案内をする。骨の中央部は、例えば衝 撃具又は摘出ツールを固定するために使用される内部スレッドを有している。According to the embodiment of the present invention, the shaft has a side surface that extends in a substantially straight line, and is slightly curved at the center thereof. Relatively thin such shafts are standard shafts that are easy to handle and can be adapted to various applications. The shaft contacts laterally and centrally with the wall of the femur that has been expanded using a drill. The distal end of the shaft has a central hole for removing the spinal canal. Further, according to the embodiment of the present invention, the central hole may penetrate through the entire shaft, or may stop at the center of the shaft. Moreover, the protrusion is used as an impact surface when the artificial bone is moved sufficiently. The central hole can be used to use a lance as an insertion means. The lance is anchored within the bone before the artificial bone shaft is fully moved and thus provides guidance as the shaft is moved. The central portion of the bone has an internal thread that is used, for example, to secure an impact tool or extraction tool.

【０００８】 本考案の実施例によれば、シャフトはその開口の領域で燐灰石で被覆され取り 扱い易くなつている。According to an embodiment of the present invention, the shaft is coated with apatite in the area of its opening for easy handling.

【０００９】[0009]

【考案の実施の形態】[Embodiment of device]

図１から図３に示される大腿部材１０はシャフト１２とカラー１４とを有して いる。カラーは従来のものなので、より詳しくは説明しない。シャフト１２は、 図示されるように、カラーを形成することなしにテーパ状首部に連結されている 。そのテーパ状首部とシャフト１２との間に、突起１６が該首部の横方向に形成 されており、この突起は大腿部材を十分に動かすときの衝撃面として機能する。 その突起１６即ち衝撃面は、シャフト１０全体の軸線１８に対してほぼ垂直に延 びている。 The thigh member 10 shown in FIGS. 1 to 3 has a shaft 12 and a collar 14. The colors are conventional and will not be described in more detail. The shaft 12 is connected to the tapered neck without forming a collar, as shown. A protrusion 16 is formed between the tapered neck portion and the shaft 12 in the lateral direction of the neck portion, and this protrusion functions as an impact surface when the thigh member is sufficiently moved. The projection 16 or the impact surface extends substantially perpendicular to the axis 18 of the entire shaft 10.

【００１０】 図示されるように、符号２０で示される下方の末端はほぼ直線状に延び、その 断面は図６から図８に示されるようにほぼ円形状又はほぼ楕円形状となつている 。図１に示されるように、残りの部分で弓状に湾曲している横側断面は突起１６ まで真直に延びている。しかしながら、シヤフトの中央部分２４は図１及び図３ に示すように弓状に湾曲している。前面側２６及び脊椎側２８は平面であり、（ 図４及び図５）そして非常に小さな角度を有する。As shown, the lower end, generally designated 20, extends generally straight and its cross section is generally circular or elliptical as shown in FIGS. 6-8. As shown in FIG. 1, the transverse section, which is bowed at the rest, extends straight to the projection 16. However, the central portion 24 of the shaft is arcuately curved as shown in FIGS. The anterior side 26 and the vertebral side 28 are planar (FIGS. 4 and 5) and have a very small angle.

【００１１】 中央シヤフト部分２４は、腹部から脊椎側に延びる５つの開口を有している。 図１において上方の４つの穴３０は細長穴形状に形成され、その中央の３つの穴 ３０はほぼ長方形の断面を有する。最上開口３０は、ほぼ三角形状に形成され、 横方向に向かつてその幅が増加している。長穴３０の長軸は軸線１８に対してほ ぼ６０°以下の角度で延びている。最も下の開口３０は、その長軸が軸線１８に 平行な長穴である。開口３０は、図に示されるように中央及び横側からほぼ等距 離で終つている。その長さは、この領域におけるシヤフト部２４の幅の少なくと も半分である。開口３０間のウエブ３２は比較的小さい。図においては、ウエブ ３２は開口３０の幅の半分よりも小さい。開口３０の中心は、末端部２０におい て軸線１８と接する緩やかな曲線上に位置している。３つの上方長穴の長さは、 開口３０の幅の半分よりも大きい。スポンジ質を収容するスペースは大きいが、 しかしシヤフトの安定性は悪くならない。開口３０を角度的に配置したので、シ ヤフト１０の圧力分布が良好となる。シヤフト１２を貫通する貫通穴３４は、末 端部２０に対して共軸に延びており、衝撃面１６で終わつている。図３に示すよ うに、貫通穴３４は３６の部分で広げられ工具を受けるための内部ねじを有して いる。３６の部分は大腿部材１０を十分動かした後ねじで閉じられ、ねじの頭部 は拡大部分３８で平面とすることが出来る。貫通穴３４は、大腿部分で動かされ た案内ランスによつて大腿部材１０を十分に動かす。中央部２４は、埋め込まれ た大腿部材１０を回転させないために、横方向にウエブ４０を有している。The central shaft portion 24 has five openings extending from the abdomen to the spine side. In FIG. 1, the upper four holes 30 are formed in an elongated hole shape, and the central three holes 30 have a substantially rectangular cross section. The uppermost opening 30 is formed in a substantially triangular shape, and the width thereof increases laterally. The long axis of the slot 30 extends at an angle of approximately 60 ° or less with respect to the axis 18. The lowermost opening 30 is an elongated hole whose major axis is parallel to the axis 18. Aperture 30 ends approximately equidistant from the center and lateral sides as shown. Its length is at least half the width of the shaft 24 in this region. The web 32 between the openings 30 is relatively small. In the figure, the web 32 is less than half the width of the opening 30. The center of the opening 30 is located on the gentle curve that is in contact with the axis 18 at the end portion 20. The length of the three upper slots is greater than half the width of the opening 30. There is a large space for accommodating the sponge, but the stability of the shaft does not deteriorate. Since the openings 30 are angularly arranged, the pressure distribution of the shaft 10 is good. A through hole 34 passing through the shaft 12 extends coaxially with the end portion 20 and ends at the impact surface 16. As shown in FIG. 3, the through hole 34 has an internal thread for widening at 36 to receive a tool. The portion 36 is screwed closed after the thigh member 10 has been moved sufficiently, and the head of the screw can be flat with the enlarged portion 38. The through hole 34 allows the thigh member 10 to be moved sufficiently by the guide lance moved on the thigh. The central portion 24 has a web 40 laterally to prevent rotation of the implanted thigh member 10.

【００１２】 大腿部材１０は、適当な人体適合合金、例えばクロム・コバルト合金、又は望 ましくはチタン合金をモールデイングによって構成される。その大腿部材は、調 和された長さと直径で製造される。The thigh member 10 is constructed by molding a suitable human-compatible alloy, such as a chrome-cobalt alloy, or preferably a titanium alloy. The thigh member is manufactured in a tempered length and diameter.

【００１３】[0013]

【考案の効果】[Effect of device]

本考案によれば、以上述べた複数開口の配列及び傾斜関係によって、大腿部材 の中央シヤフト部に掛かる圧力が最適に分散され得る。更に、スポンジ質材料を 充填すべき比較的長い空洞が設けられているので十分な安定性が得られる。 According to the present invention, the pressure applied to the central shaft portion of the thigh member can be optimally distributed by the arrangement and inclination relationship of the plurality of openings described above. Furthermore, since a relatively long cavity to be filled with the spongy material is provided, sufficient stability can be obtained.

【図面の簡単な説明】[Brief description of drawings]

【図１】図１は、本考案による股関節人工骨の大腿部材
の腹部及び脊椎側を示す図面である。FIG. 1 is a view showing the abdominal and spinal sides of a femoral member of a hip joint artificial bone according to the present invention.

【図２】図２は、該大腿部材の側面を示す図面である。FIG. 2 is a drawing showing a side surface of the thigh member.

【図３】図３は、部分的に断面で示す、中央軸部の同様
図面である。FIG. 3 is a similar view of the central shank, shown in partial cross-section.

【図４】図４は、図１の線４−４における断面を示す図
面である。FIG. 4 is a drawing showing a cross-section taken along line 4-4 of FIG.

【図５】図５は、図１の線５−５における断面を示す図
面である。5 is a drawing showing a cross-section taken along line 5-5 of FIG. 1. FIG.

【図６】図６は、図１の線６−６における断面を示す図
面である。6 is a drawing showing a cross section taken along line 6-6 of FIG. 1. FIG.

【図７】図７は、図１の線７−７における断面を示す図
面である。7 is a drawing showing a cross-section taken along line 7-7 of FIG. 1. FIG.

【図８】図８は、図１の線８−８における断面を示す図
面である。8 is a drawing showing a cross section taken along line 8-8 of FIG. 1. FIG.

【符号の説明】[Explanation of symbols]

１０ シャフト １２ シャフト １６ 突起 １８ 軸線 ２０ 末端シャフト部 ２４ シャフト中央部
分 ２６ 腹部側（前面側） ２８ 脊椎側 ３０ 開口 ３２ ウエブ ３４ 共軸穴（貫通穴） ３６ 広げられた部分 ３８ 拡大部分 ４０ ウエブ10 Shaft 12 Shaft 16 Protrusion 18 Axis 20 End Shaft Part 24 Shaft Central Part 26 Abdominal Side (Front Side) 28 Spinal Side 30 Opening 32 Web 34 Coaxial Hole (Through Hole) 36 Expanded Part 38 Expanded Part 40 Webb

───────────────────────────────────────────────────── フロントページの続き (72)考案者 ハンス・エリッヒ・ハルダー ドイツ連邦共和国デー−2316 プロプシュ タイエルハーゲン，メックレンブルガー・ シュトラーセ 35 (72)考案者 カルル・オーバーシュタイナー スイス国ツェーハー−9434 アウ，ツォル シュトラーセ ３ ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hans Erich Halder Federal Republic of Germany Day 2316 Probst-Tielhagen, Mecklenburger Straße 35 (72) Inventor Karl Obersteiner Zecher-9434 Au, Switzerland Zolstraße 3

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】 断面弧状の内側及び外側を有し、かつ脊
椎側（２８）を前面側（２６）に連結している開口（３
０）を設けた上部を有しているシャフト（１２）から成
り、該シャフト（１２）の軸線（１８）に関して垂直な
前記開口（３０）の寸法が上方の開口から下方の開口に
かけて減少している、股関節人工骨の大腿部材（１０）
において、 シャフト下方部（２０）がほぼ直線状に形成され、シャ
フト上方部のみがほぼ平行に伸びている４〜６個の開口
（３０）を備えており、これらの開口（３０）の長軸が
シャフト下方部（２０）の軸線（１８）に対して５０°
から６５°の角度、望ましくは約６０°の角度をなして
延びており、かつ僅かに曲がっているシャフトの内側に
対してほぼ垂直をなしており、 シャフト上方部に近接した少なくとも第１の細長い開口
（３０）の長さが、その幅の２倍に等しいか又はそれ以
上であり、 これらの開口（３０）は骨材を収容するため自由に開口
しており、 シャフト（１２）の側方が実質的に上下方向において直
線をなしており、 前記開口（３０）間のウエブ（３２）の幅が、開口（３
０）の幅よりも小さく、望ましくは前記開口（３０）の
広さのせいぜい半分であり、 前記シャフト（１２）はほぼ直線状に延びており、 前記シャフト下方部（２０）が、ほぼ円形状または楕円
形状の断面を有しており、 前記シャフト中央部（２４）の前記脊椎側（２８）及び
前面側（２６）は平坦でありかつ内側に向かって僅かに
傾いており、 好ましくはシャフト（１２）全体を通して延びている共
軸穴（３４）が前記シャフト下方部（２０）に形成され
ており、かつ該共軸穴（３４）は、当該共軸穴（３４）
に対してほぼ垂直に延びている前記シャフト（１２）の
衝撃面（１６）の中央付近で終端となつている、 ことを特徴とする股関節人工骨の大腿部材。1. An opening (3) having an inner side and an outer side with an arcuate cross section and connecting the spinal side (28) to the anterior side (26).
0) provided with a shaft (12) having an upper portion, the size of said opening (30) perpendicular to the axis (18) of said shaft (12) decreasing from the upper opening to the lower opening. Femoral member for hip joint artificial bone (10)
In, the lower shaft portion (20) is formed substantially linearly, and only the upper shaft portion is provided with 4 to 6 openings (30) extending substantially in parallel, and the long axis of these openings (30). Is 50 ° with respect to the axis (18) of the lower shaft part (20)
Extending at an angle of about 65 °, preferably about 60 °, and being substantially perpendicular to the inside of the slightly curved shaft, at least a first elongate member proximate the upper portion of the shaft. The length of the openings (30) is equal to or greater than twice its width, these openings (30) are open for accommodating aggregates, lateral to the shaft (12) Are substantially straight lines in the vertical direction, and the width of the web (32) between the openings (30) is equal to the width of the openings (3).
0), preferably at most half the width of the opening (30), the shaft (12) extends in a substantially straight line, and the shaft lower part (20) has a substantially circular shape. Or has an elliptical cross section, the spine side (28) and anterior side (26) of the shaft central portion (24) being flat and slightly inclined inwardly, preferably the shaft ( 12) A coaxial hole (34) extending through the whole is formed in the shaft lower portion (20), and the coaxial hole (34) is the coaxial hole (34).
A femoral member for a hip joint artificial bone, characterized in that it terminates near the center of the impact surface (16) of the shaft (12) that extends substantially perpendicular to. 【請求項２】 請求項１の大腿部材において、前記シャ
フト（１２）が、前記開口（３０）の領域を燐灰石で被
覆されていることを特徴とする股関節人工骨の大腿部
材。2. The femoral component for hip joint artificial bone according to claim 1, wherein the shaft (12) is covered with apatite in the area of the opening (30). 【請求項３】 請求項１及び２のいずれか１の大腿部材
において、前記シャフト（１２）が、クロム・コバルト
合金又はチタン合金をモールデイングにより構成される
ことを特徴とする股関節人工骨の大腿部材。3. The thigh member according to claim 1 or 2, wherein the shaft (12) is formed by molding a chromium-cobalt alloy or a titanium alloy. Element.
JP1995008735U 1992-02-11 1995-08-21 Femoral component of hip prosthesis Expired - Lifetime JP2575632Y2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9201646U DE9201646U1 (en) 1992-02-11 1992-02-11
DE9201646.4 1992-02-11

Publications (2)

Publication Number Publication Date
JPH08904U true JPH08904U (en) 1996-06-07
JP2575632Y2 JP2575632Y2 (en) 1998-07-02

Family

ID=6875963

Family Applications (2)

Application Number Title Priority Date Filing Date
JP5018864A Pending JPH05277138A (en) 1992-02-11 1993-02-05 Thigh member of artificial hip joint bone
JP1995008735U Expired - Lifetime JP2575632Y2 (en) 1992-02-11 1995-08-21 Femoral component of hip prosthesis

Family Applications Before (1)

Application Number Title Priority Date Filing Date
JP5018864A Pending JPH05277138A (en) 1992-02-11 1993-02-05 Thigh member of artificial hip joint bone

Country Status (6)

Country Link
EP (1) EP0555629B1 (en)
JP (2) JPH05277138A (en)
AT (1) ATE126043T1 (en)
CA (1) CA2089236C (en)
DE (2) DE9201646U1 (en)
ES (1) ES2077446T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19535393C1 (en) * 1995-09-23 1997-02-27 Karlsruhe Forschzent Internal hip joint prosthesis
FR2751868B1 (en) * 1996-08-02 1999-04-16 Tornier Sa ADJUSTED PROSTHESIS OF THE SUPERIOR END OF THE HUMERUS
ES2125174B1 (en) * 1996-11-12 1999-11-16 Traiber S A HIP PROTEST.
KR100468866B1 (en) * 2001-09-10 2005-01-29 삼성테크윈 주식회사 Cementless stem for hip joint arthroplastry
GB0419961D0 (en) * 2004-09-08 2004-10-13 Sudmann Einar Prosthetic element

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8409993U1 (en) * 1984-07-19 Mecron Medizinische Produkte Gmbh, 1000 Berlin Prosthesis socket
CH459462A (en) * 1965-05-26 1968-07-15 Christiansen Tor Hip joint prosthesis
US3510883A (en) * 1967-10-30 1970-05-12 Robert F Cathcart Joint prosthesis
DE2705153A1 (en) * 1977-02-08 1978-08-17 Baumann Friedrich Artificial ball and socket hip joint - has rib on ball member adjacent to necked part and forming extension of straight part
EP0012146A1 (en) * 1978-11-23 1980-06-25 Osteo Ag Ribbed joint prosthesis, implantable without cement, and process for manufacturing it
DE2931750C2 (en) * 1979-08-04 1986-06-19 Howmedica International, Inc. Zweigniederlassung Kiel, 2300 Kiel One-piece thigh part of a hip joint endoprosthesis
IE54180B1 (en) * 1982-04-19 1989-07-05 Vitek Inc Articulating joint prostheses
JPS62501960A (en) * 1985-05-23 1987-08-06 ラバ−　フユ−　エクスペリメンテル　シル−ジ−　シユバイツエリシエス　フオ−チユングスインステイチユ−ト Self-locking stem element for joint endoprosthesis
DE3715000A1 (en) * 1987-05-06 1988-11-17 Krupp Gmbh JOINT PROSTHESIS AND METHOD FOR THEIR PRODUCTION
DE8712607U1 (en) * 1987-09-18 1989-01-19 Howmedica Gmbh, 2314 Schoenkirchen, De
US4865608A (en) * 1987-11-20 1989-09-12 Brooker Jr Andrew F Grooved endoprosthesis
DE3804239A1 (en) * 1988-02-11 1989-08-24 Karl Heinrich Prof Dr Taeger JOINT PART FOR A JOINT PROSTHESIS
US5078746A (en) * 1989-01-25 1992-01-07 Richards Medical Company Femoral stem distal centralizer
JPH043224A (en) * 1990-04-20 1992-01-08 N T T Data Tsushin Kk Method for managing soft module by ic card
DE9006893U1 (en) * 1990-06-20 1990-08-23 Howmedica Gmbh, 2314 Schoenkirchen, De

Also Published As

Publication number Publication date
JPH05277138A (en) 1993-10-26
JP2575632Y2 (en) 1998-07-02
EP0555629B1 (en) 1995-08-09
DE69300333T2 (en) 1995-12-21
EP0555629A1 (en) 1993-08-18
DE69300333D1 (en) 1995-09-14
CA2089236A1 (en) 1993-08-12
DE9201646U1 (en) 1992-04-02
ES2077446T3 (en) 1995-11-16
ATE126043T1 (en) 1995-08-15
CA2089236C (en) 1999-06-01

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